Visualization of biological macromolecules

Abstract: Reconstruction and modeling of urban environments and old archeological cities has become an important task in today's industry. The 3D modeling area usually involves the creation of threedimensional geometry and corresponding textures based on the captured input data in an urban environment. Currently, this is a very actively researched field, affecting not only the areas of computer graphics, computer vision and computational geometry, but also several applications - such as urban planning, cultural heritage, lighting, design or research. Through technical advances combined with drastic price reductions, acquired techniques (such as laser scanners, photogrammetry or infrared range scanners) have become highly sophisticated but also widely available tools. With them, huge amounts of point-based data (ie a large number of threedimensional coordinates of the captured surfaces, sometimes with metadata such as color, vectors, etc.) of different types of objects are generated. The article examines the processes of application of 3D technologies in the development of tourism and promotion of cultural and historical heritage. The main emphasis in this article is placed on the new direction in the application of mixed reality in tourism. Virtual and augmented reality are used not only in the advertising of tourist sites, but also the opportunity for tourists to meet and see in a new way cultural and historical sites. In this paper we will present illustrative examples of digitalization of historical sites and monuments through photogrammetry and three-dimensional modeling. The results were obtained by students studying the preservation of cultural and historical heritage. We will show the first reconstructions of the ancient city "Skaptopara". The three-dimensional reconstructions were made according to the project of Prof. Peteva.